Machine for double-winding pipes or pipe-coverings.



H. E. AINE. MACHINE FOR DOUBLE WINDING PIPES OR PIPE COVERINGS.

7 APPLICATION FILED .IUNE I4, I9I3- 1,146,912. Patented July 20, 1915.

z I I W/T/I/ESSES: l/VI/ENTOR QW 0% 6.

ATTORNEY HARRY E. ATNE, 0F RICHMOND, CALIFORNIA.

MACHINE FOR DOUBLE-WINDING PIPES OR PIPE-COVERINGS.

Specification of Letters Patent. I Patented July 20, 1915.

Application filed June 14, 1913. Serial No. 773,712.

To all whom it may concern:

Be it known that I, HARRY E. AINE, a citizen of the United States,residing at Richmond, in the county of Contra Costa and State ofCalifornia, have invented certain new and useful Improvements inMachines for Double-Winding Pipes or Pipe-Coverings, of which thefollowing is a specification.

The resent invention relates to improvements in continuous wire woundwooden stave pipe or pipe covering constructed in the ditch or placewhere used and the apparatus for winding the same, and the invention hasfor its principal objects, to provide an apparatus for winding a pipe orpipe covering with a plurality of wrappings or coils of wire, whereby onthe breaking of one strand, the others will prevent the staves of thepipe or covering from becoming displaced and will retain the same inposition until the broken strand can be mended or a portion of the piperewound; to provide'an apparatus which will simultaneously wind a pipeor covering of the above type with a plurality of coils of wire in oneoperation, and each coil arranged in parallel spaced relation'to theother; and to provide an apparatus which is capable of assembly over aconstructed pipe without cutting the same.

\Vith the above mentioned and other objects in view, the inventionconsists in the novel construction and combination of parts hereinafterdescribed, illustrated in the accom 'ianying drawings and pointed out inthe claims hereto appended; it being understood that various changes inthe form, proportion, size and minor details of construction within thescope of the appended claims may be resorted to without departing fromthe spirit or sacrificing any ofv the advantages of the invention.

To more fully comprehend the invention, reference should be had to theaccompanying drawings wherein is disclosed one form of my invention, andin which Figure 1 is a view in elevation of my invention mounted on apipe, disclosing the winding apparatus, the two separate strands of wirewound thereby on the pipe, the double wire feed and tension mechanism,and the reel for holding the separate strands of wire. Fig. 2 is avertical sectional view taken on line 22 of Fig. 1, disclosing morefully the pipe encircling shells, the annulus,

. ings, wherein like reference numerals designate corresponding partsthroughout theseveral views, the numeral 1 indicates a suitable annuiusconstructed of two semi-circular segments, the ends of which overlapand-are joined by the bolts 2. An annular groove 3 is provided on eachside of the annulus and in the same operate the rollers 4 carried on theinner surfaces .of the cheek plates 5, which are connected at theirupper edges to one end of a laterally extending arm 6, which issupported at oneside of the trench on a suitable movable dolly 7. Theannulus is provided on its peripheral edge with teeth 8, which intermeshwith a pinion 9 mounted between the cheek plates 5, and which is rotatedby a suitable motor 10, thus transmitting power to the annulus.

Detachably mounted within the annulus is a pipe encircling shell,comprising the semicircular members 11 and 12, provided at their edgeswith flanged plates 13 through which extend the bolts 14 which retainthe shell around the pipe.

Pivotally mounted as at 15' on the interior surface of the respectiveshells are the I semi-circular equi-distant pitch giving bars 16,preferably V-shaped in cross section and pivotally connected at their.opposite ends to the respective sliding plates 17 and '18, carried bythe sections, the plates 18 being adjusted through the medium of thebolts 19 which connect with flanges 20 carried by the respective members11 and 12. The pitch giving bars project inwardly and act as threadswhen embracing the exterior surface of the stares, and their slightbiting action into the exterior surface of the staves causes the entirewire winding mechanism to advance regularly, and progressivelylongitudinally of the pipe and tightly wind the two strands therearoundin parallel spaced relation to each other. By adjusting the inclinationof the pitch giving bars, the inclination of the spirals may be varied.

Mounted on the exterior surface of the re-- spective semi-cylindricalshells 11 and 12, and located at diametrically opposite points siondevices A and B, which are rotatable with the shell and through whichthe respective wires pass when being wound onto the pipe. The structureseach consist of a plurality of rollers 21 mounted between plates 22secured to the respective shells and over said rollers passes the wirewhich is being wound onto the pipe, the tension exerted on the wirebeing regulated by the adjustable rollers 23, carried by the plates 22,and positioned between the rollers 21, and between which and the rollers21 passes the wire.

It will be apparent that by positioning the feeding devices for therespective wires at opposite points on the shells, that the wires willbewound around the pipe in alternate spirals.

The device being mounted on the assembled staves and power beingsupplied from the motor 10 to rotatethe annulus and shell in thedirection of the arrow-Fig. 1, the

device operates in the following manner inapplying the double spiralwindings of wire to the pipe. The wires 24 and 25, which are bothunwound from the reel 26 are passed respectively downwardly around andunder the shell, through the winding and tension device A,.through anopening in the shell where it. is suitably attached to the staves; anddownwardly, under, upwardly and over the shell, through the windingandtension mechanism B, through an opening 28 in the shell and onto thepipe, where it is attached to staves in any suitable manner, and as'theshell is rotated about the pipe, the wires 24.- and 25 will be woundtherearound in alternately disposed, equidistant spaced,

continuous spirals, and the engagement of the pitch giving bars 16slightly biting into the staves and contacting at their rear side faceswith the forward edges of the tightly wound spirals, will cause theentire winding mechanism to advance regularly and progressivelylongitudinally of the staves.

It will be apparent that the rotation of the shell about the pipe willautomatically advance the dolly along its supporting track and the samewill prevent the movement of' the motor and pinion in the direction ofrotation of the annulus.-

' From-the above description it will be observed that I have provided apipe winding or pipe cover winding machine, which is capable at oneoperation of winding a plurality of separate and distinct wires inalternately disposed parallel spaced coils about the pipe or covering;is capable of being positioned over a constructed pipe without cuttingthe same; and is provided with means for varying the inclination of thespirals.

It will be apparent that by securing the rotatable annulus, acylindrical structure encircling shell mounted within said annulus androtatable therewith, a plurality of tension devices mounted upon-theshell, each of said tension devices being adapted to receive a separatestrand of wire to be fed through the shell, whereby to apply the wire tothe I structure in independent coils, the convolutions of which arespaced longitudinally of the structure, and means for rotating theannulus.

2. A wire winding apparatus including a rotatable annulus, a cylindricalstructure encircling shell mounted within said annulus and rotatabletherewith, a plurality of spaced tension devices mounted in the sameplane upon the shell, each of said tension devices provided with aseries of rollers and adapted to receive a separate strand of wire to befed through spaced openings in the shell, thereby applying the wire tothe structure .in in ependent coils, two series of pitch bars arrangedwithin the shell, means for independently adjusting the inclination ofeach series of bars, whereby the convolutions of the wire are spirallyspaced longitudinally of the structure, and means for rotating theannulus.

3. A wire applying apparatus including a rotatable annulus, acylindrical structure encircling shell mounted within the annulus androtatable therewith, means for feeding two separate strands of wirethrough the shell, two series of pitch bars arranged within theshellwhereby the convolutions of the wire are spaced longitudinally ofthe structure, and means for rotating the annulus.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARRY E. AINE.

WVitnesses:

HARRY H. To'r'rEN, D. B. RICHARDS.

